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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define sp " "
  4. #define el '\n'
  5. #define ll long long
  6. const int N = 200000;
  7. const int MAX_TIME = 2e9;
  8. int n, hours, a[N];
  9. bool ok(int k){
  10.     int current_hours = 0;
  11.     for(int i = 1; i <= n; i++){
  12.         current_hours += ceil ((double)a[i] / k);
  13.     }
  14.     return current_hours <= hours;
  15. }
  16. void solve()
  17. {
  18.     cin >> n >> hours;
  19.     for(int i = 1; i <= n; i++){
  20.         cin >> a[i];
  21.     }
  22.     int l = 1, r = 1e9, ans = 0;
  23.     while(l <= r){
  24.         int mid = l + (r - l) / 2;
  25.         if(ok(mid)){
  26.             ans = mid;
  27.             r = mid - 1;
  28.         }        
  29.         else l = mid + 1;
  30.     }
  31.     cout << ans << endl;
  32. }
  33. int32_t main()
  34. {
  35.     ios_base::sync_with_stdio(false);
  36.     cin.tie(NULL);
  37.     int t; cin >> t;
  38.     for(int i = 1; i <= t; i++){
  39.         solve();
  40.     }
  41.     return 0;
  42. }
  43.  
Success #stdin #stdout 0.06s 5320KB
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https://ideone.com/DSeGDC
language:
C++ (gcc 8.3)
created:
12 hours ago
visibility:
public

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